Reputable Contests

[Ken]

I really don't pay attention to contest awards when shopping for books online (unless it's a Booker or Pulitzer nominee). However, I know a couple of authors who have won some of these awards. I don't know if it's helped their sales, because they were already doing very well.

Just be careful: there are many, many scams out there. Take a look at Victoria Strauss' excellent "Writer Beware" posts:
http://accrispin.blogspot.com/p/about...